The process involves removing various screws, bolts, and fasteners holding the dash in place, along with disconnecting wiring harnesses and other components. Some components attached *to* the dash might require some maneuvering around the steering column, but full removal of the column is typically unnecessary.
Always consult a repair manual specific to your 1973 Dodge Challenger for the precise steps. These manuals provide detailed instructions and diagrams to guide you through the process safely and effectively. Improper removal can lead to damage to both the dash and the steering column.